*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
input,button{
    border: none;
    outline: none;
}
i,em{
    font-style: normal;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
    color: #666;
}
.clearfix::after {
    content: "";
    clear: both;
    display: table;
  }